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Dynamic Trend Following Strategy

Author: ChaoZhang, Date: 2023-12-11 15:43:42
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Overview

The main idea of this strategy is to dynamically track market trends by buying when the trend goes up and selling when the trend goes down. It combines multiple technical indicators to determine the trend direction, such as linear regression, modified Hull Moving Average, etc.

Strategy Logic

This strategy utilizes various technical indicators to determine the trend direction. First, it calculates a price channel, with the upper and lower limits based on the simple moving average of close and an input parameter. Then, it calculates the modified Hull Moving Average, which is considered better at depicting trends. In addition, the linear regression indicator is also calculated. It generates buy signals when the modified HMA crosses above the linear regression line, and sell signals when crossing below. This allows dynamically tracking changes in the trend.

To reduce false signals, the strategy also incorporates several filters, such as using EMA to determine if it’s in a downtrend, and a windowed indicator to check for RSI divergence. These filters help avoid taking trades during choppy, sideways markets.

For entries and exits, the strategy records the price of the last open position, and sets take profit and stop loss percentages. For example, if the last long entry price is $100, it may set the take profit target at $102, and stop loss price at $95. This achieves dynamic tracking of the trends.

Advantage Analysis

This strategy has the following advantages:

  1. Dynamically tracking trend changes can smoothly catch longer-term directional moves.
  2. Using multiple filters reduces noise and avoids over-trading during choppy markets.
  3. Automatically adjusting stop loss and take profit levels achieves trend following.
  4. Parameters can be optimized through backtesting to find the best combination automatically.

Risk Analysis

There are also some risks with this strategy:

  1. Still cannot completely avoid being caught in trend reversals, which may lead to larger floating losses when trends reverse.
  2. Improper parameter settings may lead to poor strategy performance. Requires optimization to find the best parameters.
  3. Long data processing time may cause signal delays. Need to optimize indicator calculation to be as real-time as possible.

To control risks, one can set stop loss, use trailing stops or options to lock in profits. Also, extensive testing of parameter combinations is necessary to find reliable ranges. Finally, execution time of indicators should be monitored to ensure timely signals.

Optimization Directions

This strategy can be improved in the following aspects:

  1. Test combinations of more indicators to find more reliable ways of determining trends.
  2. Adjust parameter ranges to find optimal parameters.
  3. Optimize signal filters to find balance between noise reduction and lagging.
  4. Try machine learning approaches to automatically generate trading rules.

During optimization, backtesting and paper trading should be utilized extensively to evaluate signal quality and stability. Only well-validated optimizations should be applied in live trading.

Conclusion

Overall this is a decent trend following strategy. It uses multiple indicators to gauge trends, sets up filters to reduce false signals, and can automatically adjust stops and targets to follow trends. With proper parameter tuning, it can smoothly catch mid to long-term trends. Next steps would be finding optimal parameters, and continue validating and improving the strategy.

/*backtest
start: 2023-12-03 00:00:00
end: 2023-12-06 00:00:00
period: 3m
basePeriod: 1m
exchanges: [{"eid":"Futures_Binance","currency":"BTC_USDT"}]
*/

// This source code is subject to the terms of the Mozilla Public License 2.0 at https://mozilla.org/MPL/2.0/
// © RafaelZioni

//@version=4
strategy(title = " BTC 15 min", overlay = true, pyramiding=1,initial_capital = 10000, default_qty_type= strategy.percent_of_equity, default_qty_value = 20, calc_on_order_fills=false, slippage=0,commission_type=strategy.commission.percent,commission_value=0.075)
strat_dir_input = input(title="Strategy Direction", defval="all", options=["long", "short", "all"])
strat_dir_value = strat_dir_input == "long" ? strategy.direction.long : strat_dir_input == "short" ? strategy.direction.short : strategy.direction.all
strategy.risk.allow_entry_in(strat_dir_value)
price = close
length8 = input(30,title = 'length of channel')
upmult = input(title = 'upper percent',type=input.float, step=0.1, defval=5)
lowmult = input(title = 'lower percent',type=input.float, step=0.1, defval=5)

basis = sma(close, length8)

vup = upmult * price / 100
vlow = lowmult * price / 100

upper = basis + vup
lower = basis - vlow
plot(basis, color=color.red)


//
fastLength = input(3, title="Fast filter length ", minval=1)
slowLength = input(21,title="Slow filter length",  minval=1)
source=close
v1=ema(source,fastLength)
v2=ema(source,slowLength)
//

leng=1
p1=close[1]

len55 = 10
//taken from https://www.tradingview.com/script/Ql1FjjfX-security-free-MTF-example-JD/
HTF = input("1D", type=input.resolution)
ti = change( time(HTF) ) != 0
T_c = fixnan( ti ? close : na )

vrsi = rsi(cum(change(T_c) * volume), leng)
pp=wma(vrsi,len55)

d=(vrsi[1]-pp[1])
len100 = 10
x=ema(d,len100)
//
zx=x/-1
col=zx > 0? color.lime : color.orange

//

tf10 = input("1", title = "Timeframe", type = input.resolution, options = ["1", "5", "15", "30", "60","120", "240","360","720", "D", "W"])

length = input(50, title = "Period", type = input.integer)
shift = input(1, title = "Shift", type = input.integer)

hma(_src, _length)=>
    wma((2 * wma(_src, _length / 2)) - wma(_src, _length), round(sqrt(_length)))
    
hma3(_src, _length)=>
    p = length/2
    wma(wma(close,p/3)*3 - wma(close,p/2) - wma(close,p),p)

b =security(syminfo.tickerid, tf10, hma3(close[1], length)[shift])
//plot(a,color=color.gray)
//plot(b,color=color.yellow)
close_price = close[0]
len = input(25)

linear_reg = linreg(close_price, len, 0)




buy=crossover(linear_reg, b) 
sell=crossunder(linear_reg, b) or crossunder(close[1],upper)
//

src2=low
src3=high
Min =input(15)
leni = timeframe.isintraday and timeframe.multiplier >= 1 ? 
   Min / timeframe.multiplier * 7 : 
   timeframe.isintraday and timeframe.multiplier < 60 ? 
   60 / timeframe.multiplier * 24 * 7 : 7

l1 = wma(src2,leni)
h1 = wma(src3,leni)
//
m=(h1+l1)/2
//
len5 = 100

src5=m

//
multi = 2

mean = ema(src5, len5)  
stddev = multi * stdev(src5, len5)  
b5 = mean + stddev
s5 = mean - stddev


var bool long = na
var bool short = na

long :=crossover(src5, s5) 
short :=  crossunder(src5, b5)

var float last_open_long = na
var float last_open_short = na

last_open_long := long ? close : nz(last_open_long[1])
last_open_short := short ? close : nz(last_open_short[1])


entry_value =last_open_long
entry_value1=last_open_short

r=100
//
highb = highest(entry_value1, r)  
lowb = lowest(entry_value, r)  
d5 = highb - lowb  
me = (highb + lowb) / 2  
h4 = highb - d5 * 0.236  
c3 = highb - d5 * 0.382  
c4 = highb - d5 * 0.618  
l4 = highb - d5 * 0.764  
//
col2 = close >= me ? color.lime : color.red
       
p5 = plot(upper, color=col2)
p2 = plot(lower, color=col2)
fill(p5, p2,color=col2)
// Conditions

longCond = bool(na)
shortCond = bool(na)
longCond := crossover(zx,0) or buy 
shortCond := sell

// Count your long short conditions for more control with Pyramiding

sectionLongs = 0
sectionLongs := nz(sectionLongs[1])
sectionShorts = 0
sectionShorts := nz(sectionShorts[1])

if longCond
    sectionLongs := sectionLongs + 1
    sectionShorts := 0
    sectionShorts

if shortCond
    sectionLongs := 0
    sectionShorts := sectionShorts + 1
    sectionShorts

// Pyramiding

pyrl = 1


// These check to see your signal and cross references it against the pyramiding settings above

longCondition = longCond and sectionLongs <= pyrl
shortCondition = shortCond and sectionShorts <= pyrl

// Get the price of the last opened long or short

last_open_longCondition = float(na)
last_open_shortCondition = float(na)
last_open_longCondition := longCondition ? open : nz(last_open_longCondition[1])
last_open_shortCondition := shortCondition ? open : nz(last_open_shortCondition[1])

// Check if your last postion was a long or a short

last_longCondition = float(na)
last_shortCondition = float(na)
last_longCondition := longCondition ? time : nz(last_longCondition[1])
last_shortCondition := shortCondition ? time : nz(last_shortCondition[1])

in_longCondition = last_longCondition > last_shortCondition
in_shortCondition = last_shortCondition > last_longCondition

// Take profit

isTPl = true
//isTPs = input(false, "Take Profit Short")
tp = input(2, "Exit Profit %", type=input.float)
long_tp = isTPl and crossover(high, (1 + tp / 100) * last_open_longCondition) and longCondition == 0 and in_longCondition == 1
//short_tp = isTPs and crossunder(low, (1 - tp / 100) * last_open_shortCondition) and 
   //shortCondition == 0 and in_shortCondition == 1

// Stop Loss

isSLl = input(true,"buy Loss Long")
//isSLs = input(false, "buy Loss Short")
sl = 0.0
sl := input(5, " rebuy %", type=input.float)
long_sl = isSLl and crossunder(low, (1 - sl / 100) * last_open_longCondition) and 
   longCondition == 0 and in_longCondition == 1
//short_sl = isSLs and crossover(high, (1 + sl / 100) * last_open_shortCondition) and 
   //shortCondition == 0 and in_shortCondition == 1

//
// Conditions

longCond5 = bool(na)
shortCond5 = bool(na)
longCond5 := longCondition
shortCond5 := long_tp

// 

sectionLongs5 = 0
sectionLongs5 := nz(sectionLongs5[1])
sectionShorts5 = 0
sectionShorts5 := nz(sectionShorts5[1])

if longCond5
    sectionLongs5 := sectionLongs5 + 1
    sectionShorts5 := 0
    sectionShorts5

if shortCond5
    sectionLongs5 := 0
    sectionShorts5 := sectionShorts5 + 1
    sectionShorts5

// 

pyr5 = 1


longCondition5 = longCond5 and sectionLongs5 <= pyr5
shortCondition5 = shortCond5 and sectionShorts5 <= pyr5

// Get the price of the last opened long or short

last_open_longCondition5 = float(na)
last_open_shortCondition5 = float(na)
last_open_longCondition5 := longCondition5 ? open : nz(last_open_longCondition5[1])
last_open_shortCondition5 := shortCondition5 ? open : nz(last_open_shortCondition5[1])

last_longCondition5 = float(na)
last_shortCondition5 = float(na)
last_longCondition5 := longCondition5 ? time : nz(last_longCondition5[1])
last_shortCondition5 := shortCondition5 ? time : nz(last_shortCondition5[1])

in_longCondition5 = last_longCondition5 > last_shortCondition5
in_shortCondition5 = last_shortCondition5 > last_longCondition5
//
filter=input(true)
g(v, p) => round(v * (pow(10, p))) / pow(10, p)
risk     = input(100)
leverage = input(1)
c = g((strategy.equity * leverage / open) * (risk / 100), 4)

//
l =(v1 > v2 or filter == false ) and longCondition or long_sl
//
//l = longCondition or long_sl
s=shortCondition5  
if l 
    strategy.entry("buy", strategy.long,c)
if s 
    strategy.entry("sell", strategy.short,c)


per(pcnt) =>
    strategy.position_size != 0 ? round(pcnt / 100 * strategy.position_avg_price / syminfo.mintick) : float(na)
stoploss=input(title=" stop loss", defval=5, minval=0.01)
los = per(stoploss)
q1=input(title=" qty_percent1", defval=50, minval=1)
q2=input(title=" qty_percent2", defval=50, minval=1)

tp10=input(title=" Take profit1", defval=1, minval=0.01)
tp20=input(title=" Take profit2", defval=2, minval=0.01)

strategy.exit("x1", qty_percent = q1, profit = per(tp10), loss = los)
strategy.exit("x2", qty_percent = q2, profit = per(tp20), loss = los)
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